You are asked to create a 0.35 M solution of calcium chloride (CaCl2) using a 250.0 mL volumetric flask.Calculate the mass of CaCl2 needed to make this stock (original) 0.35 M CaCl2 solution. You are asked to create 50.0 mL of 0.15 M CaCl2 from the stock solution you made in (A). Calculate the volume of stock solution you need to create your diluted solution. You have two solvents, difluoromethane (CH2F2) and ethanol (C2H5OH) available to dissolve your CaCl2. Which solvent would be more appropriate to use? Justify your response in 2 sentences or less. You react 30.0 mL of 0.35 M CaCl2 with excess solid lithium. The balanced reaction is shown below. What mass of solid calcium is made during this experiment?CaCl2(aq) + 2 Li(s) → Ca(s) + 2 LiCl(aq) 10090NANO,8070CaCl,Pb(NO,)2KNOS605040NaciKCI302010KCIO,Ce,(SO10 20 30 40 50 60 70 80 90 100Temperature (°C)Solubility (g of salt in 100 g H,0)FONX

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Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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You are asked to create a 0.35 M solution of calcium chloride (CaCl2) using a 250.0 mL volumetric flask.

Calculate the mass of CaCl2 needed to make this stock (original) 0.35 M CaCl2 solution.

You are asked to create 50.0 mL of 0.15 M CaCl2 from the stock solution you made in (A). Calculate the volume of stock solution you need to create your diluted solution.

You have two solvents, difluoromethane (CH2F2) and ethanol (C2H5OH) available to dissolve your CaCl2. Which solvent would be more appropriate to use? Justify your response in 2 sentences or less.

You react 30.0 mL of 0.35 M CaCl2 with excess solid lithium. The balanced reaction is shown below. What mass of solid calcium is made during this experiment?

CaCl2(aq) + 2 Li(s) → Ca(s) + 2 LiCl(aq)

100
90
NANO,
80
70
CaCl,
Pb(NO,)2
KNOS
60
50
40
Naci
KCI
30
20
10
KCIO,
Ce,(SO
10 20 30 40 50 60 70 80 90 100
Temperature (°C)
Solubility (g of salt in 100 g H,0)
FONX

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